Aqueous Ions And Reactions Worksheet With Answers Page 4
ADVERTISEMENT
1
2
3
4
5
6
7
8
9
10-
-
-
+
2+
2+
Salts soluble with exception: Cl
, Br
, I
except Ag
, Pb
, Hg
2
2-
2+
2+
2+
2+
SO
except Ca
, Sr
, Ba
, Pb
4
2+
2+
2+
Salts insoluble: metal oxides and hydroxides except Ca
, Sr
, Ba
, alkali (give base)
2-
3-
2-
2-
+
CO
, PO
, S
, SO
except NH
, alkali metal
3
4
3
4
Solubility and Precipitation Reactions
Reaction Occur if:
1. Precipitate Formed
+
-
NaCl Na
Soluble (dissolve > 10g/L)
NaCl
+ Cl
(lot)
2+
-
Partially Soluble
PbCl
PbCl
<--- --> Pb
+ 2Cl
(little)
2
2
+
-
Insoluble (dissolve < 1g/L)
AgCl
AgCl <---- -> Ag
+ Cl
(very little)
Soluble will have no precipitate
Precipitate will form in partially soluble or insoluble if ions > 0.1M
In next course can assign numerical values but this is just qualitative
Not expected to memorize the solubility rules
But be able to use and know ion charges
Example:
Given: Ca(OH)
soluble and Mg(OH)
insoluble
2
2
Ocean Water contains 0.13% by weight Mg
How could you separate Mg from ocean water?
2+
2+
Ca(OH)
+ sea water (Mg
) Ca
+ Mg(OH)
(s)
2
2
2+
-
(aq) Ca
Ca(OH)
+ 2OH
2
2+
-
Mg
+ 2OH
Mg(OH)
(s) Net Reaction
2
In Freeport Texas there is a large plant that to produce magnesium from ocean water
Naming Oxoacids
In problems look up if precipitate forms
On the exam it will tell you if insoluble or precipitate, otherwise assume soluble
NaCl + NH
NO
No Reaction
4
3
THINK IONS
2. Weak Electrolyte Formed
+
-
HC
H
O
(aq) <---- --> H
(aq) + C
H
O
(aq)
2
3
2
2
3
2
99% acetic acid
1% acetate ion
+
If produce acetate it will quickly attract H
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education